Mean s



June 2, 1931. L RE) 1,807,796 MEANS APPLICABLE FOR USE IN CONVEYING HOT VISCOUS MATERIALS,

SUCH AS BITUMEN, TAR, SUGAR, AND THE LIKE Filed July 12, 1929 ATTORNEY Patented June 2,1931

UNITED. ENT oFFicgf LESLIE KIitKPATItIOK nEIn, or AsI 'roN-oN-MER'sEY, ENGLAND, AssIdNon' To 15:

ANDERSON s2 soNs LIMITED, or LONDON, ENGLAND MEANS APPLICABLE FOR USE IN CONVEYING nor viscous MATERIALSQSUcE 'As :BITUME -TAR; sIIGAmANn' THE LIKE I z- Application filed July 12, 1929, Serial No. 377,77j and'iin Giat Britain September 15; 1958.;

This invention relates to improved means applicable for use in conveying hot-viscous materials, for example, bitumen, tar, sugar and the'like; the object being to provide a 5' conduit for such materials Which will have a minimizing effect onthe labour expense" incidental to cleaning, repairing, or the like asexperienced in connection with the conduits at present employed for the pur ose.

rd in'a'rily, the hot Viscous material is pumped, or otherwise forced, or allowed to flow by gravity, through a pipe Whichis enclosed in a larger borepi'pesons to form a jacket for the passage or circulation of steam, hot oil, or other heating medium, for maintaining the liquidity' 'of the material durin'g'its conveyance throughthe pipe and thej dismounting of such pipe" installations involve the expenditureofconsiderable time and labour ineflectin'g the'disconnection of the pipesand the connectionstherewith for the supply, ofthe" heating mediumand the re assemblingthereo'f upon the completion of thecleaningorother operation. K Accord'ng to this inyenti'on', theconveying means comprise channelled sections which maybe of semi-circular or approximately semi-circular formationflin" cross; section so 30 that When placed together With the channels facing each other a pipe-like;structureresults,- the half-pipe sections being i rmea or provided With lateral longitudinal flanges or the like andisecnred 'in position by' cla'inps,

' bolts, or other retaining means The aforesaid channelled section's" constitute the upper and lewd haljes ofi a hhrizontally' and longitudinally diyided pipe ortube andxone or both of suchs'ectiohsl may be provided With an outer Wall spaced therefrom soas to form a j'acket for the passage or circulation of steam, h ot' oil or other heating medium; If desired, instead of jacket, the upper pipe section provided with a" suitable lagginginorder to retain the" heat in the'c'onduit'. The lateral longitudinal flanges may bqwholiy secured by bolting, clamping or otheritiis'eor only one pair of meeting flanges maybes oisecured While the oth'ei' painmayb seamen by means or a i -Hi joint, Or a clampfifi thefor'niof metal Strap rn'ay be employed" forsec'uring the upper and lower halves of the horizon may be arranged to straddle" the joint so, as to'connect the adjacent ends of thejackt'and provide a"contin'uous passagefo'r the heating medium, desired,the jfacliet may' ontinned to the fl'an'ge" a ndtlie latterjbe formed With port s'ior' thepas sage o fitheheating medium,o r' there-may be spaced openings in iacia'lj projections or distancepieceson thje'fiange's, theiprojections or thedis'ta'nce pieces being adapted 'tdentr' the j acket's 'ja'c'e and to be I secured by screws or Wel mg. other eans or securing'uninterfl pted cam ta'lly divided pipe ortube sections Which munica'tion betyv'enlthe ackets' ofthe sev ral now 'b' more ful'ly described with rate-ante to" the accompanying" drawings, in Whichf- Figdre 1 is a Vertical; longitiidiiialfsection showing-one form of conduit a'coordingto the invention'. l

Fi i 'efli afira I n a a I a ate-3 isia plan Viewcoi'respondingitwith u I I li fi 3' Par a $1 1 tfifii 31 vertioallohgitudinal s'ectio fshowilig a tional form of conduit similafirto, that f illu's filfitd' inFigi1IeS1'3andi fi l la a" mi d? tfait olr nearth upper" part thereof and a. .1 v e sectlonthereof. a

of connecting the sections which constitute such conduit.

Figures 5 and 6 are views in transverse section illustrating conduits having a longitudinal hinge joint.

Figure 7 is a view in elevation showlng a construction in which the upper half pipe or tube is composed of several sections while the lower half pipe or tube is formed in a single section or length.

Figure 8 is a corresponding transverse sectiontaken along the line 8-8 in Figure 7.

Referring first to Figures 18, a indicates a channelled section constituting the upper half of a pipe or tube formation and Z) indicates a channelled section forming the lower half thereof, each half pipe or tube having lateral longitudinal flanges 0 whereby they are adapted for being secured in position with their channels facing each other by means of bolts indicated at d. In the illus trations referred to, it is assumed that the pipe structure is formed as a single length but it will be readily understood that, when required, a plurality of lengths may be joined by providing end flanges such as e and connecting the several lengths by means of bolts or other securing means (not shown). In order to preserve the liquidity of the material in course of conveyance through the conduit, the lower half of the pipe formation is provided with a jacket by applying an outer wall f,the latter being formed as an integral part of the half pipe or tube formation Z) or being welded or otherwise secured so as to assume the desired relation therewith. The heating medium may enter the jacket by way of an inlet pipe indicated at g and leave the same by way of the exit pipe h; the former being preferably arranged in the upper portion of the jacket and the latter at the lower part thereof.

Referring now to the construction illustrated in Figure 4:, which comprises a plurality of lengths of the divided pipe or tube formation constituting the conduit for the material such lengths are joined by means of the end flanges e and the jacket at the junctions may terminate a short distance from the flanges, there being a pipe connection indicated at a between the sections so joined whereby a continuous passage is furnished for the heating medium. There may be a kind of bus bar connection between the disconnected jackets, or if desired, the continuity of the jacket may be preserved through the end flanges by means of ports or spaced apertures in the material of the flanges and in alignment with the jacket. Many ways of securing the interrupted communication between jackets of adjoining lengths will, however, readily suggest themselves to those acquainted with constructions of similar character. I

With constructions such as above described,

if found necessary or desirable, the upper pipe, section may be provided with a suitable lagging in order to assist in retaining the heat in the conduit.

In some conditions of working it may be found convenient, while arranging for the bolting or clamping together of the longitudinal flanges on one side of the conduit, to construct the flanges on the other side with a hinge joint as indicated at in Figures 5 and 6; the former figure showing a construction such as above described and the latter figure a construction in which the upper as well as the lower half pipe or tube structure is provided with a acket, there being an outer wall f applied to the upper half pipe structure a.

It will be seen that the upper and lower half pipe or tube structures may be constituted of a single continuous length or of joined sections or lengths.

According to the construction illustrated in Figures 7 and 8, the lower or jacketed half pipe or tube structure is shown as composed of a single length Z while the upper half pipe or tube structure is composed of end sections m and a central section n which laps the end sections at their inner ends where they are secured by means of straps o and hinge bolts p carried by lugs g, or the like, provided on the said lower single length structure Z, similar straps and fixing means securing the parts at or near the ends of the conduit. The joint between the upper and lower half pipe or tube structures may be rendered tight by applying asbestos or similar packing material in the groove Z which may be as shown (Figure 8) or of U or V or any other desired section. The upper pipe structure may also, if desired, be provided with a jacket or a suitable lagging.

By the improved conveying means hereinbefore described the opening of the conduit for inspection, repair, or cleaning is rendered easy of accomplishment, it being simply necessary to remove the securing means to enable the upper half pipe or tube structure to be dismounted or removed. Thus, for example, the cleaning of the whole pipe range may be carried out while the conduit remains in position without disconnecting the pipes themselves or the connections for the supply of the heating medium. Similarly after the cleaning or other operation has been effected, the conduit may be as readily secured in working condition for re-use.

The meeting facesof the flanges or other parts may be machined for the purpose of obtaining tight jointing, or sheet jointing or packing may be inserted. The conduit may be constructed of wrought or cast iron or other suitable metal or material.

I claim f 1. A conduit for hot viscous materials comprising in combination a lower half pipe section formed as a single length and an upper half pipe section composed of a plurality of lengths the adjacent ends of which are joined in lapped relation by metal straps applied over the said lapped joints and secured by hinged bolts on the said lower section.

2. A conduit for hot viscous materials comprising, in combination, a lower half pipe section formed as a single length with double walls forming a heating jacket and an upper halt pipe section composed of a plurality of lengths the adjacent ends of which are joined in lapped relation by metal straps applied over the said lapped joints and secured by hinged bolts on the said lower section.

3. A conduit for hot Viscous materials com prising in combination, a lower half pipe section formed as a single length with double walls for the passage therebetween of a heating medium and with lateral longitudinal channels and an upper half pipe section composed of a plurality of lengths the lateral longitudinal edges of which are in juxta relation, a packing in the aforesaid lateral longitudinal channels and the adjacent ends of the lengths of said upper half pipe sections joined in lapped relation by metal straps applied over the said lapped joints and secured by hinged bolts on the said lower section.

In testimony whereof I have subscribed my signature this twenty-sixth day of June,

L. K. REID. 

